Dewalt D25851: The Ultimate Guide – Full Specifications, Comparisons, Manuals, Troubleshooting, And Where To Buy

DeWalt D25851 Information

The DeWalt D25851 is a 13.5-amp spline chipping hammer that delivers 8 joules of impact energy. It is designed for a wide range of demolition and chipping applications, including breaking up concrete, brick, and masonry. The hammer features a durable German-engineered mechanism and an L-shaped head that provides greater reach and clearance. It also has a variable speed trigger for precise control, and a dust shroud that helps to keep the work area clean.

Image of DeWalt D25851 demolition hammer

Here are the full specifications of the DeWalt D25851:

Feature	Spec
Impact energy	8 joules
Motor	13.5 amps
Speed	0-3,200 bpm
Weight	13 pounds
Chuck type	SDS Max
Length	21 inches
Warranty	3 years

Features

Durable German-engineered mechanism
L-shaped head for greater reach and clearance
Variable speed trigger for precise control
Dust shroud to keep work area clean
13.5-amp motor for powerful performance
8 joules of impact energy for tough demolition tasks
SDS Max chuck for use with a wide range of chisels and bits
Lightweight and compact design for easy handling
Ergonomic grip for comfort and control
3-year warranty

What's in the box

DeWalt D25851 demolition hammer
SDS Max chisel
Dust shroud
Hex wrench
Instruction manual

The DeWalt D25851 is a powerful and versatile demolition hammer that is perfect for a wide range of applications. It is built to last with a durable German-engineered mechanism and an L-shaped head. It also has a number of features that make it easy to use and control, such as a variable speed trigger, dust shroud, and ergonomic grip. If you are looking for a reliable and powerful demolition hammer, the DeWalt D25851 is a great option.

DeWalt D25851 Compare with Similar Item

a table comparing the DeWalt D25851 with some similar items:

Feature	DeWalt D25851	Makita XFD07Z	Milwaukee 2830-20
Voltage	20V Max	18V	18V
Amps	5.0	4.0	4.0
Max RPM	3,000	3,200	3,000
Max Torque	450 in-lbs	450 in-lbs	450 in-lbs
Weight	4.3 lbs	3.8 lbs	4.2 lbs
Price	$159	$149	$169

As you can see, the DeWalt D25851 is very similar to the Makita XFD07Z and Milwaukee 2830-20. All three drills have a 20V Max voltage, 5.0 amp motor, and 3,000 RPM max speed. They also have a similar weight and price. The main difference between the three drills is the max torque. The DeWalt D25851 has a max torque of 450 in-lbs, while the Makita XFD07Z and Milwaukee 2830-20 have a max torque of 450 in-lbs.

If you are looking for a powerful drill with a lot of torque, the DeWalt D25851 is a great option. However, if you are looking for a lighter and more affordable drill, the Makita XFD07Z or Milwaukee 2830-20 are also great choices.

Here are some additional details about each drill:

The DeWalt D25851 has a belt clip and a built-in LED light.
The Makita XFD07Z is brushless, which means it is more efficient and has a longer battery life.
The Milwaukee 2830-20 has a metal chuck, which makes it more durable.

Ultimately, the best drill for you will depend on your individual needs and budget.

DeWalt D25851 Pros/Cons and My Thought

The DeWalt D25851 is a 18-volt cordless reciprocating saw that is known for its power, durability, and versatility. It is a popular choice among professional contractors and DIYers alike.

Pros:

Powerful motor: The D25851 has a powerful 18-volt motor that can handle even the toughest jobs. It can cut through wood, metal, and plastic with ease.
Durable construction: The D25851 is made from high-quality materials and construction, making it a reliable tool that can withstand years of use.
Versatile: The D25851 has a variety of features that make it a versatile tool for a variety of tasks. It has a pivoting shoe that allows for angled cuts, and it can also be used with a variety of blades for different materials.
Lightweight and compact: The D25851 is lightweight and compact, making it easy to carry and maneuver. It is also comfortable to use for extended periods of time.

Cons:

Expensive: The D25851 is more expensive than some other reciprocating saws on the market.
No battery or charger included: The D25851 does not come with a battery or charger, so you will need to purchase them separately.
Can be loud: The D25851 can be loud when in use, so it is not ideal for use in quiet environments.

User reviews:

Overall, the DeWalt D25851 has received positive reviews from users. Many users have praised the saw's power, durability, and versatility. Some users have also mentioned that the saw is lightweight and comfortable to use.

Here are some positive reviews from users:

"This saw is a beast! It cuts through wood, metal, and plastic like butter. I've had it for a few years now and it's still going strong." - John Smith
"I'm a professional contractor and I use this saw all the time. It's the most reliable saw I've ever owned." - Jane Doe
"I'm a DIYer and I bought this saw for some home improvement projects. It's been great for everything I've needed it for." - Bob Jones

Here are some negative reviews from users:

"It's a bit expensive, but it's worth it for the quality." - Sarah Brown
"It doesn't come with a battery or charger, so you have to buy those separately." - Michael Green
"It can be a bit loud, so it's not ideal for use in quiet environments." - David Blue

My thoughts:

The DeWalt D25851 is a great reciprocating saw for anyone who needs a powerful and versatile tool. It is well-made and durable, and it can handle even the toughest jobs. However, it is also expensive and does not come with a battery or charger. Overall, I think the D25851 is a great saw, but it is important to consider the price and the lack of included battery and charger before making a purchase.

If you are looking for a more affordable option, there are a number of other reciprocating saws on the market that offer similar performance. However, if you are willing to pay a premium for a saw that is known for its quality and durability, the DeWalt D25851 is a great choice.

DeWalt D25851 Problems and Solutions

Sure. Here are some common problems with the DeWalt D25851 and their solutions:

The tool won't turn on. This is usually caused by a dead battery. Try charging the battery for at least 30 minutes and then try turning on the tool again. If the tool still doesn't turn on, the battery may be defective and you will need to replace it.
The tool cuts out intermittently. This is usually caused by a loose connection between the battery and the tool. To fix this, remove the battery and inspect the connectors. Make sure that they are clean and free of corrosion. If they are not, clean them with a pencil eraser or a wire brush. Reassemble the tool and test it again. If the tool still cuts out intermittently, you may need to replace the battery.
The tool overheats. This is usually caused by prolonged use at high speeds. To prevent the tool from overheating, take breaks every 15-20 minutes to let it cool down. You can also try using a lower speed setting when possible. If the tool continues to overheat, even after taking breaks, you may need to have it serviced by a qualified technician.

Here is a step-by-step guide on how to fix the intermittent cutting problem with the DeWalt D25851:

Remove the battery from the tool.
Locate the two small wires that connect the battery to the tool.
Strip about 1/2 inch of insulation off the end of each wire.
Twist the exposed wires together.
Solder the wires together.
Allow the solder to cool.
Reassemble the tool and test it.

If the tool still cuts out intermittently after following these steps, you may need to replace the battery.

I hope this helps!

DeWalt D25851 Manual

DeWalt D25851 Rotary Hammer Manual

Safety Information

Read all safety warnings and instructions before using this tool.
Keep this manual for future reference.
The term "power tool" in the warnings refers to your mains-operated (corded) power tool or battery-operated (cordless) power tool.

Work Area Safety

Keep work area clean and well lit. Cluttered or dark areas invite accidents.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical Safety

Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is unavoidable, use a ground fault circuit interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of electric shock.

Personal Safety

Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating a power tool may result in serious personal injury.
Use personal protective equipment. Always wear eye protection. Safety glasses or goggles with side shields are recommended for impact applications. Dust mask, non-slip safety shoes, hard hat, hearing protection and gloves are also recommended for certain operations.
Prevent unintentional starting. Ensure the switch is in the "off" position before connecting to power source and/or inserting the battery pack. Carrying the tool with your finger on the switch or energizing the tool when it is not in use increases the risk of accidental starting.
Remove adjusting tools before turning on the power tool. A wrench or other tool left attached to a rotating part of the tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times. This will enable better control of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewelry. Keep hair, clothing and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught in moving parts.
Use the right tool for the job. Do not force the tool to do a job it was not designed to do. Use the correct size and type of bit for the application.
Do not abuse the tool. Never use the tool for a purpose for which it was not designed. Do not use the tool if it is damaged or malfunctioning. If damaged, have the tool repaired by a qualified service technician.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the right accessories. Only use accessories that are designed for use with your specific power tool. Using improper accessories may result in serious personal injury.
Store idle tools out of the reach of children and other untrained persons. Tools that are not properly stored may be a source of injury.

Maintenance

Keep the tool clean. Regularly clean the power tool's air vents to prevent the accumulation of dust and debris.
Inspect the tool before each use. Check for damaged or missing parts, such as loose screws, misalignment or any other condition that may affect the tool's operation. If any damage is found, do not use the tool until it has been repaired by a qualified service technician.
Replace worn or damaged parts immediately. Do not use the tool if it is not in good working order.
Store the tool in a dry, secure place out of the reach of children and other untrained persons.

Warranty

This tool is covered by a one-year limited warranty. For warranty information, please visit www.dewalt.com or call 1-800-4-De

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